Configuration
Complete settings and customization guide.
API Provider Setup
OpenAI
- Get API key: platform.openai.com/api-keys
- In app Settings (⚙️): Select OpenAI
- Paste API key
- (Optional) Change model from default
gpt-5-nano
Available models: gpt-4o-mini, gpt-4o, gpt-4, gpt-3.5-turbo, etc.
Google Gemini
- Get API key: aistudio.google.com/apikey
- In app Settings (⚙️): Select Gemini
- Paste API key
- (Optional) Change model from default
gemini-2.5-flash
Available models: gemini-2.5-flash, gemini-1.5-pro, gemini-pro, etc.
WARNING
Never share your API key or commit it to version control!
Custom Enhancement Options
Create up to 5 custom prompts for specific needs.
How to Add
- Settings (⚙️) → Scroll to "Custom Enhancement Options"
- Click Add Custom Option
- Enter:
- Label: Button name (e.g., "Add Emojis")
- Prompt: AI instruction (e.g., "Add relevant emojis")
- Click Add
Optimization Tips
Keep prompts 2-5 words:
- ✅ "Add emojis"
- ✅ "Simplify for beginners"
- ✅ "Remove jargon"
- ❌ "Please make this text more simple and easy to understand"
Why? Shorter = Faster + Cheaper
Example Prompts
- "Add emojis"
- "Simplify technical terms"
- "Make persuasive"
- "Add bullet points"
- "Remove passive voice"
Token Usage Tracking
Monitor API costs in real-time.
What's Tracked
- Input/output tokens per request
- Estimated cost (OpenAI pricing)
- Cumulative totals
Where to View
- Main window: Current session
- Settings: Full history
- Reset button: Clear all data
Data Storage
Settings Location
~/Library/Application Support/com.kitelus.grammar-assistant/What's Stored Locally
- API keys (secure)
- Provider preferences
- Custom enhancement options
- Token usage statistics
What's NOT Stored
- ❌ Your text content
- ❌ AI responses
- ❌ Usage analytics
Token Usage Tracking
Monitor your API usage and costs:
- Real-time tracking: See tokens used per request
- Cost estimates: Approximate costs for OpenAI
- Total statistics: View cumulative usage
- Reset stats: Clear tracking data anytime
Access from settings or view in the main interface.
Global Shortcut
The keyboard shortcut is Cmd+Shift+G (fixed, not customizable).
How it works:
- Select text in any app
- Press Cmd+Shift+G
- Grammar Assistant opens with your text
- Choose enhancement mode
- Copy and paste result back
Privacy & Data
Data Collection
Grammar Assistant respects your privacy:
- ✅ Text only sent when you press Cmd+Shift+G
- ✅ No automatic text collection
- ✅ No analytics or tracking
- ✅ API keys stored locally only
- ✅ No cloud storage
Local Storage
Settings are stored at:
~/Library/Application Support/com.kitelus.grammar-assistant/